ibiza (u/ibiza) - Readit News

ibiza commented on CrowdStrike's outage should not have happened ebellani.github.io/blog/2... · Posted by u/b-man

dataflow · 2 years ago

My speculation is they probably did stage the rollout to some extent, but didn't have a viable or fast enough feedback mechanism to let them know there was a kernel crash. That seems much more plausible than the engineers being incompetent enough to not have staged rollouts at all. Or they might have had it, but only for code rather than data.

ibiza · 2 years ago

I think that is being too charitable. The problem is 100% reproducible. The machine blue-screens at boot up. What kind of staging environment allows this to go through?

ibiza commented on X debut 40 years ago (1984) talisman.org/x-debut.shtm... · Posted by u/guerby

ibiza · 2 years ago

I wonder if a Sun, Dec, or HP of the 90s would have had a fighting chance against Windows NT had they not embraced X, and instead developed a local-first stack optimized for their considerable hardware.

Related, I've always found it odd that in Linus' history of Linux, part of it was a desire to implement an Amiga-like OS on a PC. This is the message-passing-bad guy. What happened?

ibiza commented on Some Useful Bash Aliases (2022) chuck.is/alias/... · Posted by u/todsacerdoti

ForkMeOnTinder · 2 years ago

  alias ..='cd ..'
  alias ...='cd ../..'
  alias ....='cd ../../..'
  alias .....='cd ../../../..'
  alias ......='cd ../../../../..'
  alias .......='cd ../../../../../..'

Merry christmas, HN!

ibiza · 2 years ago

I did not realize cd'ing up was an esoteric sport. My own take:

  shopt -s cdable_vars
  u2=../.. u3=../../.. u4=../../../.. u5=../../../../..

ibiza commented on Curl on 100 Operating Systems daniel.haxx.se/blog/2023/... · Posted by u/LaSombra

queuebert · 2 years ago

Dave? Dave? I'm still waiting on a port for HAL 9000. Please, Dave.

ibiza · 2 years ago

HAL 9000 is already included as z/OS or z/VM.

jeberle commented on Oxide Hiring Process rfd.shared.oxide.computer... · Posted by u/jryb

jeberle · 2 years ago

§3.1 Timely rejection is key. Ghosting a candidate as a sign of no-move-forward is beyond crass.

ibiza commented on The IBM 5153's True CGA Palette and Color Output (2022) int10h.org/blog/2022/06/i... · Posted by u/susam

SoftTalker · 2 years ago

I would guess that the original PC color palette was selected to match or at least be similar to the colors on the 3270-style mainframe terminals.

ibiza · 2 years ago

The PC (1981) predates the first color 3270 terminals like the IBM 3179 (1984). A 3179 had 7 colors: pink, red, blue, yellow, green, white, and turquoise. I used one & remember it looking quite good but different from PCs of its day.

ibiza commented on Objective-C Internals alwaysprocessing.blog/ser... · Posted by u/ingve

ibiza · 3 years ago

Apple's original Objective-C docs are available at their Documentation Archive. They are quite good.

• Programming With Objective-C (current): https://developer.apple.com/library/archive/documentation/Co...

• The Objective-C Programming Language (older): https://developer.apple.com/library/archive/documentation/Co...

ibiza commented on I'm 17 and wrote this guide on how CPUs run programs github.com/hackclub/putti... · Posted by u/archmaster

skizm · 3 years ago

Meta point: I'm curious of people's thoughts when OPs in general post "I'm N years old..." or "I'm a blind programmer who..." before posting something unrelated to their life situation. Personally I think this falls into the "girls do not exist on the internet" rule of thumb. No reason to state that you're a girl (or 12 years old or whatever) other than to prime people to look upon your writing with lower standards. I think it is fine to mention your situation in passing or as a footnote if it is interesting, but unsure it really adds anything to lead with it (personally I think it detracts).

That's just my opinion. Anyone else have thoughts?

FWIW this seems pretty well written from just skimming the intro and a bit of chapter 3.

Edit: sorry I did not mean for this to be the top comment and push OP down so far. The writing here is really good and folks should definitely click through and at least give it a skim if they're interested. I was just curious what people's thoughts were on this topic.

ibiza · 3 years ago

Also, 17? At that point young adults have reached cognitive maturity[1], so perhaps that's a good time to drop the qualifiers.

1. https://pubmed.ncbi.nlm.nih.gov/30762417/

ibiza commented on The IBM mainframe: How it runs and why it survives arstechnica.com/informati... · Posted by u/rbc

hermitdev · 3 years ago

> DB2 runs on Linux The DBA's I interned with would yell at you for this claim. They'd say UDB runs on Linux, but DB2 only runs on z/OS.

I worked with both DB2 & UDB during my internship 2 decades ago, and while largely compatible with core SQL functionality, that changed quickly after you got off the "normal" path. UDB was released at a much faster cadence, and if you developed to the latest features of UDB, you'd often find yourself unable to deploy against DB2.

A few of my last projects as an intern: 1) storing BLOB objects in DB2 from a .Net app and 2) porting an "interactive" batch-processed COBOL app to ASP.Net form 3) getting DB2 Connect clustering on windows working (I never did get this working despite spending an entire summer on the phone with IBM support).

I've some fond memories of working with the mainframe. Like the time I managed to crash the entire development LPAR with a specific SQL query that broke the DB2 query optimizer... The phone call from the NOC was immediate and went something along the lines of "I don't know what you did, but don't do it again, you just took down all of development". Development was something like +10k users...

ibiza · 3 years ago

Re DB2 vs UDB, thank you, it's been too long. Well done breaking DB2!

We actually targeted Oracle on Unix. Fortunately, the app developers never got too deep into DB2-isms, so it worked out fine.

ibiza commented on The IBM mainframe: How it runs and why it survives arstechnica.com/informati... · Posted by u/rbc

stcroixx · 3 years ago

What replaces JCL?

ibiza · 3 years ago

The env I helped set up was online only, no batch jobs. JCL is essentially a declarative shell language, so it's not that hard to map to Bourne shell et. al.